Ключевые слова: adult, asian, bonding, charity, charity and relief work, cheerful, clipboard, community, cooperation, donate, ecology, environment, environmental conservation, environmentalist, female, friendship, group of people, happiness, healthy lifestyle, help, holding, lifestyles, males, men, nature, outdoors, smiling, standing, student, teamwork, teenage, tshirt, vietnamese, volunteer, waist up, women, young adult, young women,